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Finding the Fourth Proportional to 298,180.08, 447,179.40 and 84,965.40

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Solution

The fourth proportional to 298,180.08, 447,179.40 and 84,965.40 is: 127,422.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,180.08 : 447,179.40 = 84,965.40 : x
  2. Step 2: Convert to fraction form
    298,180.08/447,179.40 = 84,965.40/x
  3. Step 3: Cross multiply
    298,180.08x = 447,179.40 × 84,965.40
  4. Step 4: Simplify right side
    298,180.08x = 37,994,776,592.76
  5. Step 5: Solve for x
    x = 37,994,776,592.76/298,180.08
  6. Step 6: Final answer
    x = 127,422.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.